FPDFPage_TransformAnnots(): don't re-insert unowned object on top of itself

fpdfsdk/fpdfeditpage.cpp

Index: fpdfsdk/fpdfeditpage.cpp
diff --git a/fpdfsdk/fpdfeditpage.cpp b/fpdfsdk/fpdfeditpage.cpp
index 78790f7ce690da1acb97b042d45ac035192d7883..0b20a006a7b25ba99875537ac5aa047cb45f6e7f 100644
--- a/fpdfsdk/fpdfeditpage.cpp
+++ b/fpdfsdk/fpdfeditpage.cpp
@@ -289,22 +289,22 @@ DLLEXPORT void STDCALL FPDFPage_TransformAnnots(FPDF_PAGE page,
   CPDF_AnnotList AnnotList(pPage);
   for (size_t i = 0; i < AnnotList.Count(); ++i) {
     CPDF_Annot* pAnnot = AnnotList.GetAt(i);
-    // transformAnnots Rectangle
-    CFX_FloatRect rect = pAnnot->GetRect();
+    CFX_FloatRect rect = pAnnot->GetRect();  // transformAnnots Rectangle
     CFX_Matrix matrix((FX_FLOAT)a, (FX_FLOAT)b, (FX_FLOAT)c, (FX_FLOAT)d,
                       (FX_FLOAT)e, (FX_FLOAT)f);
     rect.Transform(&matrix);
+
     CPDF_Array* pRectArray = pAnnot->GetAnnotDict()->GetArrayFor("Rect");
-    if (!pRectArray)
+    if (!pRectArray) {
       pRectArray = new CPDF_Array;
+      pAnnot->GetAnnotDict()->SetFor("Rect", pRectArray);
+    }
     pRectArray->SetAt(0, new CPDF_Number(rect.left));
     pRectArray->SetAt(1, new CPDF_Number(rect.bottom));
     pRectArray->SetAt(2, new CPDF_Number(rect.right));
     pRectArray->SetAt(3, new CPDF_Number(rect.top));
-    pAnnot->GetAnnotDict()->SetFor("Rect", pRectArray);
 
-    // Transform AP's rectangle
-    // To Do
+    // TODO: Transform AP's rectangle
   }
 }